2008 600RR not running the same? - 600RR.net
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post #1 of 14 (permalink) Old 08-07-2010, 09:28 AM Thread Starter
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2008 600RR not running the same?

Hey Guys,
hope this isnt a stupid question but my bike just isnt running the same.
about 3 days ago I noticed the difference, it doesnt seem to be running as "Peppy" if you will not as responsive and overall just sounds softer if you will. The throttle isnt as responsive and now when I shift it seems to be making more noise and not shifting as smooth as it did before.
I have no idea what brought this on, it seemed to be riding just fine at the begining of the week then I could tell a difference and I cant seem to figure it out, oil was changed 500 miles ago so thats not it.
Could it just be bad gas?

Upgades include Two Bros slip on K&N airfilter
I notice the exhaust just sounding so much weaker and not having that roar to it. and in nuatral it just seems to "putter" weak and light, and when I shift it is much much loader and it almost sounds like it is being shifted twice like a double click?

Thanks for the help guys I really appreciate it
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post #2 of 14 (permalink) Old 08-07-2010, 09:31 AM
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power commander ?
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post #3 of 14 (permalink) Old 08-07-2010, 10:23 AM
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If you don't have a pc then with the k&n and the slip on you may have burnt out the plugs. Also if you didn't use the correct oil when you replaced it then you may have a glazed clutch and burnt oil.

Pull the plugs and have a look at them, that will tell you a lot about what is going on in there.
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post #4 of 14 (permalink) Old 08-07-2010, 12:11 PM Thread Starter
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ok sounds good
any recommendations on what plugs I should run with my mods
2008 CBR 600RR two Bros Carbon Fiber slip on and K&N air filter
any suggestions on oil as well? I generally run motul

Also, I have never checked or replaced plugs before, lol maybe on a goped a couple times, but not on my street bikes, is it easy or should I bring it to a mechanic? any good write ups?
thanks
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post #5 of 14 (permalink) Old 08-07-2010, 12:19 PM
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Before you go changing the plugs, how many miles are on the bike? Just a slip-on and air filter will not burn up plugs that quickly.

Did you do anything else to the bike around the time this problem started? Fill up your gas tank around the same time?
post #6 of 14 (permalink) Old 08-07-2010, 05:47 PM
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Quote:
Originally Posted by Demented View Post
Before you go changing the plugs, how many miles are on the bike? Just a slip-on and air filter will not burn up plugs that quickly.

Did you do anything else to the bike around the time this problem started? Fill up your gas tank around the same time?
+1 on not changing them just yet, just pull them out and have a look.
This may help:
http://www.ngksparkplugs.com/tech_su...qs/faqread.asp
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post #7 of 14 (permalink) Old 08-07-2010, 05:55 PM
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Here is another site for you spark plug reading pleasure

http://www.dansmc.com/spark_plugs/sp...s_catalog.html
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post #8 of 14 (permalink) Old 08-09-2010, 07:24 PM Thread Starter
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Thanks for all the help guys,
I ran the tank out today and replace the gas and that seemed to make a big difference, must have been a bad batch.
the throttle still doesnt seem as responsive though so Ill prob have to go in there and make a few adjustmints I think there is a write up on that somewhere? lol
thanks again
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post #9 of 14 (permalink) Old 08-09-2010, 07:39 PM
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Since it's better after running new gas in, try running some injector cleaner through the bike as well. There's no adjustments you can really make on the throttle to help with responsiveness.
post #10 of 14 (permalink) Old 08-10-2010, 03:12 PM
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Go buy a power commander or a bazzaz fuel management unit and get it dyno tuned you will notice a big difference good luck

A SICKNESS FOR QUICKNESS
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post #11 of 14 (permalink) Old 08-13-2010, 06:16 PM
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And then run clean your spark plugs after, because the injector cleaner will foul them
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post #12 of 14 (permalink) Old 08-15-2010, 06:09 AM
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ambient temps also play a part in how responsive your engine feels...
I notice with mine that it feels much sharper when the air temps are cooler. feels like a pig on hot days, but it's to be expected I suppose.
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post #13 of 14 (permalink) Old 08-15-2010, 06:15 AM
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Quote:
Originally Posted by Nico View Post
+1 on not changing them just yet, just pull them out and have a look.
This may help:
http://www.ngksparkplugs.com/tech_su...qs/faqread.asp
600rr's run iridium tips, slightly different to what's shown here, in the service manual it states that if the tips are worn down you should replace.
I picked up a new set for mine a few weeks back, $97 aud for 4... But, when I took out the old ones they looked fine, tips were perfect, so I figured it'd be a waste and left them.
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post #14 of 14 (permalink) Old 08-15-2010, 06:24 AM
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Yep, you don't put them on a wire wheel or try and gap them but when they foul up a bit you can still use a little kero and give them a scrub with an old toothbrush. And their condition can say a fair bit about what they have been subjected to.
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